landscape navbar centering: reset portrait margin-right on .container-fluid + margin-left on .navbar-brand so sidebar contents align to horizontal centre; showGuard gains invertY option for modal-grid callers (role-select cards fly away from centre); gameboard.js showPortals gains viewport-half detection so game-kit tooltips show below when tokens are in upper half (landscape clip fix); position-strip top: 0; tighten gear-btn btn-abandon selector to #id_room_menu scope

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/static_src/scss/_base.scss

@@ -222,6 +222,7 @@ body {
             justify-content: space-between;
             gap: 1rem;
             padding: 0 0.25rem;
+            margin: 0;  // reset portrait margin-right: 0.5rem so container fills full sidebar width
 
             > #id_cont_game { flex-shrink: 0; order: -1; }  // cont-game above brand
 
@@ -246,6 +247,7 @@ body {
         .navbar-brand {
             order: 1;  // brand at bottom
             width: 100%;
+            margin-left: 0;  // reset portrait margin-left: 1rem
             display: flex;
             justify-content: center;
         }

src/static_src/scss/_room.scss

@@ -320,7 +320,7 @@ html:has(.gate-backdrop) .position-strip .gate-slot button { pointer-events: aut
 
 .position-strip {
     position: absolute;
-    top: 1.5rem;
+    top: 0;
     left: 0;
     right: 0;
     z-index: 130;